32-bit ARM CortexTM-M23 - NuMicro® Family

M261/M262/M263 Series

The series of NuMicro Family 32-bit microcontrollers based on the ARM Cortex-M23 core using ARMv8-M architecture. They provide secure memory areas to secure critical program codes and AES hardware accelerator for data encryption. They are equipped with rich peripherals and communication interfaces, including UART, SPI, I2C, I2S, CAN, LIN, SD, SC and USB. These chips are mainly designed to realize robust IoT security applications.
All Ics are RoHS compliant.

* Status: P - mass production, S - samples, UD - under development, N - not recommended for new design.

Chip Description Application Flash  SRAM  Data Flash Loader Flash Programm.
methods		 Clock
  frequency  		 Supply
  voltage  
[V]		 Operating
temperature
[°C]		    Package    Status *
M261KIAAE
 (6786 kB)
  • operating frequency up to 64 MHz
  • programmable system clock source
  • 2 external crystal oscillators and 4 internal RC oscillators
  • 32-bit hardware multiplier / divider
  • 4-region eXecute-Only-Memory ( XOM ) to secure critical program codes
  • AES 256 / 192 / 128 hardware accelerator and True Random Number Generator ( TRNG ) for data encryption
  • 6 tamper detection pins
  • up to 107 I/O pins
  • 4 x 32-bit timers
  • RTC
  • Watchdog
  • interfaces: 6 x Low Power UART, 2 x USCI (Universal Serial Control Interface configured as UART, SPI or I2C), 1 x QSPI, 2 x I2C, 4 x SPI / I2S (configured as SPI or I2S), 2 x LIN, 3 x SC ( ISO-7816-3), 1 x SDHC, 16/8-bits EBI
  • VAI (Voltage Adjustable Interface)
  • 12-channel PDMA
  • 24-channel 16-bit PWM
  • 16-channel 12-bit ADCs
  • 2-channel 12-bit DAC
  • external VREF pin or internal reference voltage VREF
  • 2 x analog comparator
  • 96-bit Unique ID (UID) and 128-bit Unique Customer ID (UCID)
  • LDO regulator
  • power saving modes: Power-down, Standby Power-down, Low Leakage Power-down, Ultra Low Leakage Power-down, Fast Wake-up Power-down, and Deep Power-down
 512 KB 96 KB configurable 4 KB ICP Ext. crystal:
4 - 24 MHz
32.768 kHz

Int. RC:
12 MHz
48 MHz
10 kHz
32 kHz		 1.8 – 3.6 -40 – +105 LQFP-128 P
M261SIAAE
 (6786 kB)
  • operating frequency up to 64 MHz
  • programmable system clock source
  • 2 external crystal oscillators and 4 internal RC oscillators
  • 32-bit hardware multiplier / divider
  • 4-region eXecute-Only-Memory ( XOM ) to secure critical program codes
  • AES 256 / 192 / 128 hardware accelerator and True Random Number Generator ( TRNG ) for data encryption
  • 1 tamper detection pin
  • up to 51 I/O pins
  • 4 x 32-bit timers
  • RTC
  • Watchdog
  • interfaces: 6 x Low Power UART, 2 x USCI (Universal Serial Control Interface configured as UART, SPI or I2C), 1 x QSPI, 2 x I2C, 4 x SPI / I2S (configured as SPI or I2S), 2 x LIN, 3 x SC ( ISO-7816-3), 1 x SDHC, 16/8-bits EBI
  • VAI (Voltage Adjustable Interface)
  • 12-channel PDMA
  • 24-channel 16-bit PWM
  • 16-channel 12-bit ADCs
  • 2-channel 12-bit DAC
  • external VREF pin or internal reference voltage VREF
  • 2 x analog comparator
  • 96-bit Unique ID (UID) and 128-bit Unique Customer ID (UCID)
  • LDO regulator
  • power saving modes: Power-down, Standby Power-down, Low Leakage Power-down, Ultra Low Leakage Power-down, Fast Wake-up Power-down, and Deep Power-down
 512 KB 96 KB configurable 4 KB ICP Ext. crystal:
4 - 24 MHz
32.768 kHz

Int. RC:
12 MHz
48 MHz
10 kHz
32 kHz		 1.8 – 3.6 -40 – +105 LQFP-64 P
M261ZIAAE
 (6786 kB)
  • operating frequency up to 64 MHz
  • programmable system clock source
  • 2 external crystal oscillators and 4 internal RC oscillators
  • 32-bit hardware multiplier / divider
  • 4-region eXecute-Only-Memory ( XOM ) to secure critical program codes
  • AES 256 / 192 / 128 hardware accelerator and True Random Number Generator ( TRNG ) for data encryption
  • up to 25 I/O pins
  • 4 x 32-bit timers
  • RTC
  • Watchdog
  • interfaces: 6 x Low Power UART, 2 x USCI (Universal Serial Control Interface configured as UART, SPI or I2C), 1 x QSPI, 2 x I2C, 3 x SPI / I2S (configured as SPI or I2S), 2 x LIN, 3 x SC ( ISO-7816-3), 1 x SDHC
  • VAI (Voltage Adjustable Interface)
  • 12-channel PDMA
  • 24-channel 16-bit PWM
  • 9-channel 12-bit ADCs
  • 2-channel 12-bit DAC
  • external VREF pin or internal reference voltage VREF
  • 2 x analog comparator
  • 96-bit Unique ID (UID) and 128-bit Unique Customer ID (UCID)
  • LDO regulator
  • power saving modes: Power-down, Standby Power-down, Low Leakage Power-down, Ultra Low Leakage Power-down, Fast Wake-up Power-down, and Deep Power-down
 512 KB 96 KB configurable 4 KB ICP Ext. crystal:
4 - 24 MHz
32.768 kHz

Int. RC:
12 MHz
48 MHz
10 kHz
32 kHz		 1.8 – 3.6 -40 – +105 QFN-33 P
M262KIAAE
 (6786 kB)
  • operating frequency up to 64 MHz
  • programmable system clock source
  • 2 external crystal oscillators and 4 internal RC oscillators
  • 32-bit hardware multiplier / divider
  • 4-region eXecute-Only-Memory ( XOM ) to secure critical program codes
  • AES 256 / 192 / 128 hardware accelerator and True Random Number Generator ( TRNG ) for data encryption
  • 6 tamper detection pins
  • up to 107 I/O pins
  • 4 x 32-bit timers
  • RTC
  • Watchdog
  • interfaces: 6 x Low Power UART, 2 x USCI (Universal Serial Control Interface configured as UART, SPI or I2C), 2 x I2C, 4 x SPI / I2S (configured as SPI or I2S), 2 x LIN, 3 x SC ( ISO-7816-3), 1 x SDHC, 16/8-bits EBI, USB 2.0 FS OTG, USB 1.1 Host, USB 2.0 FS Device
  • VAI (Voltage Adjustable Interface)
  • 12-channel PDMA
  • 24-channel 16-bit PWM
  • 16-channel 12-bit ADCs
  • 2-channel 12-bit DAC
  • external VREF pin or internal reference voltage VREF
  • 2 x analog comparator
  • 96-bit Unique ID (UID) and 128-bit Unique Customer ID (UCID)
  • LDO regulator
  • power saving modes: Power-down, Standby Power-down, Low Leakage Power-down, Ultra Low Leakage Power-down, Fast Wake-up Power-down, and Deep Power-down
 512 KB 96 KB configurable 4 KB ICP Ext. crystal:
4 - 24 MHz
32.768 kHz

Int. RC:
12 MHz
48 MHz
10 kHz
32 kHz		 1.8 – 3.6 -40 – +105 LQFP-128 P
M262SIAAE
 (6786 kB)
  • operating frequency up to 64 MHz
  • programmable system clock source
  • 2 external crystal oscillators and 4 internal RC oscillators
  • 32-bit hardware multiplier / divider
  • 4-region eXecute-Only-Memory ( XOM ) to secure critical program codes
  • AES 256 / 192 / 128 hardware accelerator and True Random Number Generator ( TRNG ) for data encryption
  • 1 tamper detection pin
  • up to 51 I/O pins
  • 4 x 32-bit timers
  • RTC
  • Watchdog
  • interfaces: 6 x Low Power UART, 2 x USCI (Universal Serial Control Interface configured as UART, SPI or I2C), 2 x I2C, 4 x SPI / I2S (configured as SPI or I2S), 2 x LIN, 3 x SC ( ISO-7816-3), 1 x SDHC, 16/8-bits EBI, USB 2.0 FS OTG, USB 1.1 Host, USB 2.0 FS Device
  • VAI (Voltage Adjustable Interface)
  • 12-channel PDMA
  • 24-channel 16-bit PWM
  • 16-channel 12-bit ADCs
  • 2-channel 12-bit DAC
  • external VREF pin or internal reference voltage VREF
  • 2 x analog comparator
  • 96-bit Unique ID (UID) and 128-bit Unique Customer ID (UCID)
  • LDO regulator
  • power saving modes: Power-down, Standby Power-down, Low Leakage Power-down, Ultra Low Leakage Power-down, Fast Wake-up Power-down, and Deep Power-down
 512 KB 96 KB configurable 4 KB ICP Ext. crystal:
4 - 24 MHz
32.768 kHz

Int. RC:
12 MHz
48 MHz
10 kHz
32 kHz		 1.8 – 3.6 -40 – +105 LQFP-64 P
M262ZIAAE
 (6786 kB)
  • operating frequency up to 64 MHz
  • programmable system clock source
  • 2 external crystal oscillators and 4 internal RC oscillators
  • 32-bit hardware multiplier / divider
  • 4-region eXecute-Only-Memory ( XOM ) to secure critical program codes
  • AES 256 / 192 / 128 hardware accelerator and True Random Number Generator ( TRNG ) for data encryption
  • up to 25 I/O pins
  • 4 x 32-bit timers
  • RTC
  • Watchdog
  • interfaces: 6 x Low Power UART, 2 x USCI (Universal Serial Control Interface configured as UART, SPI or I2C), 2 x I2C, 3 x SPI / I2S (configured as SPI or I2S), 2 x LIN, 3 x SC ( ISO-7816-3), 1 x SDHC, USB 2.0 FS OTG, USB 1.1 Host, USB 2.0 FS Device
  • VAI (Voltage Adjustable Interface)
  • 12-channel PDMA
  • 24-channel 16-bit PWM
  • 9-channel 12-bit ADCs
  • 2-channel 12-bit DAC
  • external VREF pin or internal reference voltage VREF
  • 2 x analog comparator
  • 96-bit Unique ID (UID) and 128-bit Unique Customer ID (UCID)
  • LDO regulator
  • power saving modes: Power-down, Standby Power-down, Low Leakage Power-down, Ultra Low Leakage Power-down, Fast Wake-up Power-down, and Deep Power-down
 512 KB 96 KB configurable 4 KB ICP Ext. crystal:
4 - 24 MHz
32.768 kHz

Int. RC:
12 MHz
48 MHz
10 kHz
32 kHz		 1.8 – 3.6 -40 – +105 QFN-33 P
M263KIAAE
 (6786 kB)
  • operating frequency up to 64 MHz
  • programmable system clock source
  • 2 external crystal oscillators and 4 internal RC oscillators
  • 32-bit hardware multiplier / divider
  • 4-region eXecute-Only-Memory ( XOM ) to secure critical program codes
  • AES 256 / 192 / 128 hardware accelerator and True Random Number Generator ( TRNG ) for data encryption
  • 6 tamper detection pins
  • up to 107 I/O pins
  • 4 x 32-bit timers
  • RTC
  • Watchdog
  • interfaces: 6 x Low Power UART, 2 x USCI (Universal Serial Control Interface configured as UART, SPI or I2C), 2 x I2C, 4 x SPI / I2S (configured as SPI or I2S), 2 x LIN, 3 x SC ( ISO-7816-3), 1 x SDHC, 16/8-bits EBI, USB 2.0 FS OTG, USB 1.1 Host, USB 2.0 FS Device, CAN 2.0B
  • VAI (Voltage Adjustable Interface)
  • 12-channel PDMA
  • 24-channel 16-bit PWM
  • 16-channel 12-bit ADCs
  • 2-channel 12-bit DAC
  • external VREF pin or internal reference voltage VREF
  • 2 x analog comparator
  • 96-bit Unique ID (UID) and 128-bit Unique Customer ID (UCID)
  • LDO regulator
  • power saving modes: Power-down, Standby Power-down, Low Leakage Power-down, Ultra Low Leakage Power-down, Fast Wake-up Power-down, and Deep Power-down
 512 KB 96 KB configurable 4 KB ICP Ext. crystal:
4 - 24 MHz
32.768 kHz

Int. RC:
12 MHz
48 MHz
10 kHz
32 kHz		 1.8 – 3.6 -40 – +105 LQFP-128 P
M263SIAAE
 (6786 kB)
  • operating frequency up to 64 MHz
  • programmable system clock source
  • 2 external crystal oscillators and 4 internal RC oscillators
  • 32-bit hardware multiplier / divider
  • 4-region eXecute-Only-Memory ( XOM ) to secure critical program codes
  • AES 256 / 192 / 128 hardware accelerator and True Random Number Generator ( TRNG ) for data encryption
  • 1 tamper detection pin
  • up to 51 I/O pins
  • 4 x 32-bit timers
  • RTC
  • Watchdog
  • interfaces: 6 x Low Power UART, 2 x USCI (Universal Serial Control Interface configured as UART, SPI or I2C), 2 x I2C, 4 x SPI / I2S (configured as SPI or I2S), 2 x LIN, 3 x SC ( ISO-7816-3), 1 x SDHC, 16/8-bits EBI, USB 2.0 FS OTG, USB 1.1 Host, USB 2.0 FS Device, CAN 2.0B
  • VAI (Voltage Adjustable Interface)
  • 12-channel PDMA
  • 24-channel 16-bit PWM
  • 16-channel 12-bit ADCs
  • 2-channel 12-bit DAC
  • external VREF pin or internal reference voltage VREF
  • 2 x analog comparator
  • 96-bit Unique ID (UID) and 128-bit Unique Customer ID (UCID)
  • LDO regulator
  • power saving modes: Power-down, Standby Power-down, Low Leakage Power-down, Ultra Low Leakage Power-down, Fast Wake-up Power-down, and Deep Power-down
 512 KB 96 KB configurable 4 KB ICP Ext. crystal:
4 - 24 MHz
32.768 kHz

Int. RC:
12 MHz
48 MHz
10 kHz
32 kHz		 1.8 – 3.6 -40 – +105 LQFP-64 P
M263ZIAAE
 (6786 kB)
  • operating frequency up to 64 MHz
  • programmable system clock source
  • 2 external crystal oscillators and 4 internal RC oscillators
  • 32-bit hardware multiplier / divider
  • 4-region eXecute-Only-Memory ( XOM ) to secure critical program codes
  • AES 256 / 192 / 128 hardware accelerator and True Random Number Generator ( TRNG ) for data encryption
  • up to 25 I/O pins
  • 4 x 32-bit timers
  • RTC
  • Watchdog
  • interfaces: 6 x Low Power UART, 2 x USCI (Universal Serial Control Interface configured as UART, SPI or I2C), 2 x I2C, 3 x SPI / I2S (configured as SPI or I2S), 2 x LIN, 3 x SC ( ISO-7816-3), 1 x SDHC, USB 2.0 FS OTG, USB 1.1 Host, USB 2.0 FS Device, CAN 2.0B
  • VAI (Voltage Adjustable Interface)
  • 12-channel PDMA
  • 24-channel 16-bit PWM
  • 9-channel 12-bit ADCs
  • 2-channel 12-bit DAC
  • external VREF pin or internal reference voltage VREF
  • 2 x analog comparator
  • 96-bit Unique ID (UID) and 128-bit Unique Customer ID (UCID)
  • LDO regulator
  • power saving modes: Power-down, Standby Power-down, Low Leakage Power-down, Ultra Low Leakage Power-down, Fast Wake-up Power-down, and Deep Power-down
 512 KB 96 KB configurable 4 KB ICP Ext. crystal:
4 - 24 MHz
32.768 kHz

Int. RC:
12 MHz
48 MHz
10 kHz
32 kHz		 1.8 – 3.6 -40 – +105 QFN-33 P